target at瞄准 ...targetn.目标；对象；靶vt.把 ... 作为目标；瞄准target following目标跟踪target frequency目标频率target attribute目标属性target libraries目标库target submarine靶标潜艇target detection目标探测target analyzing目标分析target radiation目标辐射targeting signal引导信号target lock-on目标锁定